<!DOCTYPE html>
<html>
<head>
<title>C</title>
<style>
body {
	position: relative;
}
</style>
</head>
<body>
	<div style="width: 300px; margin: 50px auto; background-color: #CCF;">
		<h1>This is C</h1>
		<p> the div is aligned in the center, relative to the viewport</p>
		<a href="b.html">Go to B</a> <a href="index.html">Go to Index</a>
	</div>
</body>
</html>